Section 2: Design Guidelines

Introduction

The design guidelines presented in this section are intended
to aid in planning Highway Safety Improvement Program (HSIP) projects.
The design guidelines reference portions of the
Roadway Design
Manual and establish items of work not eligible for HSIP
funding. These guidelines offer sufficient flexibility while retaining
safety as the essential element of all HSIP projects.

Design Guidelines

Freeway Project and Non-Freeway “New Location
or Reconstruction” Project. All roadway elements
affected by the scope of the approved HSIP safety improvement must
comply with the “
New Location
and Reconstruction (4R) Design Criteria” found in
the Roadway Design Manual (Chapter 3).
Enhancements to features outside the scope of the HSIP project
are at the district’s option and are to be funded using
district funds under a separate Control-Section Job (
CSJ).

Non-Freeway “Rehabilitation or Restoration” Projects. All
roadway elements affected by the scope of the approved HSIP safety
improvement must comply with the “
Non-Freeway
Rehabilitation (3R) Design Criteria” found in the Roadway
Design Manual (Chapter 4). Enhancements to features
outside the scope of the HSIP project are at the district’s
option and are to be funded using district funds under a separate
CSJ.

For all projects, existing roadway conditions (lane widths,
shoulder widths, etc.) must be retained as a minimum.